Thanks Jim, that explains the one time occurrence I experienced last week when it was 123 degrees and lots of shutoff and start errands.
Happened just that one time and been working great ever since. John Freer On 7/30/06, Jim Cathey <[EMAIL PROTECTED]> wrote:
> A couple of times yesterday, when I started the car after it had set > for a couple of hours and cooled off (well, relative for here) the fan > came on when I turned the ignition switch. The engine temp was about > 135 degrees F. > Now, this fan should switch on at a prescribed temperature correct? > And/Or should it be on when ever the AC is on? The usual cause of that is that the AC is on at start and the engine compartment has gotten a good heat soak, causing a high pressure in the AC system. It usually shuts off pretty soon as things stabilize. The aux fan is _not_ normally on all the time the AC is on, by design, and I'd agree with this. Because the AC compressor is on such a large percentage of the time, unless "EC" is selected, the aux fan would run too much. It's not rated for continuous duty, in that it'd wear out pretty quickly if it were on all the time. So it's wired to only come on when needed. -- Jim _______________________________________ http://www.okiebenz.com For new parts see official list sponsor: http://www.buymbparts.com/ For used parts email [EMAIL PROTECTED] To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
